Migrated several tests from blink to V8 repository.

test/webkit/dfg-inline-constructor-that-uses-arguments.js

Index: test/webkit/dfg-inline-constructor-that-uses-arguments.js
diff --git a/test/webkit/concat-while-having-a-bad-time.js b/test/webkit/dfg-inline-constructor-that-uses-arguments.js
similarity index 85%
copy from test/webkit/concat-while-having-a-bad-time.js
copy to test/webkit/dfg-inline-constructor-that-uses-arguments.js
index dfda1e08a0b36194b787a44ee12a9693acd8aeaf..0a2862f819a4ac681773b4e5e7c15963c35715d0 100644
--- a/test/webkit/concat-while-having-a-bad-time.js
+++ b/test/webkit/dfg-inline-constructor-that-uses-arguments.js
@@ -22,10 +22,16 @@
 // SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 description(
-"Tests the behavior of Array.prototype.concat while the array is having a bad time due to one of the elements we are concatenating."
+"Tests that we can inline a constructor that uses arguments without failing DFG validation."
 );
 
-Object.defineProperty(Array.prototype, 0, { writable: false });
-shouldBe("[42].concat()", "[42]");
+function Foo() {
+    this.x = arguments[0];
+}
 
+function bar() {
+    return new Foo(42);
+}
 
+for (var i = 0; i < 200; ++i)
+    shouldBe("bar().x", "42");